Cystoliths sometimes deposited in plant cells are crystals of (aggregation of)
Calcium oxalate
Calcium carbonate
Magnesium carbonate
Glucosides
$I.$ Found only in sporophytic phase of life cycle
$II.$ May contain enzymes that are biologically active
$III.$ Often contain strengthening polymers
Select the correct option for cell wall
Intercalary meristem is a derivative of
Which one of the following has least influence on cell elongation in a meristem